Anyone have a .260 or .260 Ackley with a short barrel?

I have been drooling over the .260 and .260 AI cartridges for a long time now, and am pretty well decided on it being my next chamber. My curiosity is what kind of velocities are guys seeing with a 18" or 20" barrel? I want a short gun, basically want to take the weight from the length of the barrel and add it to the diameter but still keep it in a reasonable weight range for carrying around with me on Mt. Hood when I am elk hunting. I have searched, but haven't found anyone with confirmed velocities out of a shorty.

Anyone have some data on a shorty .260?

Take 40-50 fps off for every inch and that should give you a ball park idea. Powders used and chamber tolerances all come into play in this so there is really no exact number anyone can give. I would say that you should still be able to get around 2600fps with a 140gr bullet and a 20" barrel.

If your gonna go short I'd go with the ackley to make up some of the velocity loss, I have a 20" 22-250 ackley and it gets about the same velocity as a 22-250 with a 24" barrel

Those Rosies are heavy elk! Even the cows can weight 1000 lbs, I wouldn't go lighter than a 140 gr

I definitely have the Berger 140 hunting VLD in mind.

I have a LWH and thay come with a 20" barrel. 140 vld bergers at 2700.

I have a DPMS LR-260H with a 20" barrel,and depending on the 140 gr bullet,it shoots between 2550 - 2700 fps.

Thanks for all of your input guys. I have myself and two friends all wanting to build one of these. We'll see who gets to pull the trigger first and order a barrel. I think we'll go with the ackley to help make up for some of the lost velocity. It'll be up to them how long they go but I think I'll try the 20" and if it don't work I'll sell it and build something else.

McGowen 20" 1:8 260 Rem...2700fps with 140gr Hornady HPBT and 43.0gr H4350.

It really sounds like it will be fine especially with the improved case. If I could get over 2700 I'd be tickled pink. 2600 is ok and wouldn't hinder me much but if I could reach 2700 I'd be dialed.